What is hubble law
Q: A copper sample (ccu = 387 J/kg•K) of mass me = 75 g and temperature Te = 312ºC is dropped into a gl...
A: Assuming the system is isolated, so that system's total energy doesn't change. The heat change with ...
Q: Calculate the total resistance of the circuit given below
A: The circuit can be redrawn as below,
Q: Voltage induced in secondary coil of transformer is given by__________________ a) NP*VP/NS b) NS*VP/...
A: Option
Q: The number of split levels in the magnetic field is ________ a) 2n b) 2n + 1 c) 2l d) 2l + 1
A: The pattern and amount of splitting of spectral lines is a signature of the strength of the magnetic...
Q: It is easier to roll a stone up a sloping road than to lift it vertical upwards because A. work do...
A: Option d
Q: 6. A very long cylindrical shell, non-conducting, has inner radius r¡= 10 cmand outer radius r2= 15 ...
A: Given that: R1=10cm=0.10mr2=15cm=0.15mq=+3.8 nC=3.8×10-9 CF=11×10-6 NLet, ρ=charge per unit volume o...
Q: Find the arc length parameter along the given curve from the point where t= 0 by evaluating the inte...
A:
Q: d & e please and please tell me if my previous answers are correct, if it is an option
A: The first three answers provided here are correct. d. The electric field produced at a distance alon...
Q: According to Stephen Hawking, owing to which process, can the particles escape the field of black ho...
A: A
Q: Out of the following pairs, choose the pair in which the physical quantities do not have identical d...
A: Option c
Q: A body of mass 5kg is raised vertically to a eight of 10m by a force of 170N. The velocity of the bo...
A: Option b
Q: Four point charges are usually separated by 1.00 m in air as shown below. If q1= 3.0 nC, q2= -4.0 nC...
A: Given, Four charges by separated by distance 1.00 m
Q: For the system of four capacitors shown in the figure below, find the following. (Use C, = 7.00 µF, ...
A:
Q: For a chain reaction the following rate equation is obtained. Find the CB value.
A: The chain reaction initially starts with component A (at t=0) as more and more of it is converted in...
Q: Four protons (shown in red) are at the corners of a square, as shown. Which of the following stateme...
A: Electric field points outward for a positive charge. Since proton is a positive charge so the electr...
Q: What is the value of the shunt resistance (S) required if a galvanometer has a resistance f 50 Ω and...
A: Option b
Q: A small circular hole 5.00 mm in diameter is cut in the side of a large water tank,11.0 m below the ...
A: a. Let the diameter of the circular hole be D and the vertical distance of the water level from the ...
Q: How should the permeability and number of ampere turns for good magnetic materials be? a) high perme...
A: This is a question from Electromagnetism. To solve this problem, We will need to understand the prop...
Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle...
A: Consider the following free body diagram:
Q: Evidence that much of the mass of the universe consist of dark energy has come from __________ a) me...
A: Option
Q: Relate pressure to area and force.
A: The pressure is the normal force per unit area.
Q: A body moves a distance of 10m under the action of force F = 10N. If the work done is 25 J, the angl...
A: W = Fscosθ 25 = 10×10cosθ Cosθ = 1/4 θ = cos(-1) 1/4.
Q: (a) An FM signal with an information signal of 5 kHz has a maximum frequency of 100.6 MHz and a mini...
A: Frequency Modulation Frequency Modulation is a method of varying the frequency of the carrier wave a...
Q: Couple cannot produce a translational motion. a) True b) False
A: True
Q: What is the maximum endurance limit of aluminium?a) 97 MPab) 130 MPac) 170 MPad) 290 MPa
A: Maximum endurance limit of aluminium is 130 MPa. Steels have high endurance limit of 290 MPa. Irons ...
Q: An a.c. generator consists of a coil of 1000 turns and cross-sectional area of 3m2, rotating at a co...
A: Given: Number of turns in the coil is turns N=1000. Area of cross section is A=3m2 . Constant angul...
Q: When 0.010A current flows through a moving coil galvanometer, it gives full deflection. Then, it is ...
A: Option
Q: Is there any relation between the automorphism of the group and group of permutation? If exists, giv...
A:
Q: Sample problem 6.13
A: (a) Given: The mass of the bar is m1. The mass of the Planck is m2. The coefficient of friction betw...
Q: Problem 22.38 A very long solid nonconducting cylinder of radius R1 is uniformly charged with a char...
A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...
Q: To begin, change the angle of the cannon to 30°, and the initial speed to 15 m/s.Press the “cannon b...
A: Given: Angle made by the cannon, θ = 30° Initial speed, vi =15 m/s Peak time, tp = 0.76 s ...
Q: The probability of finding an electron is zero in pxy along __________ a) x-axis b) y-axis c) z-axis...
A: Option c
Q: Write Boltzmann’s equation for the one-particle distribution function f (r, k, t).
A:
Q: Three point objects with masses ?1=3.4 kg, ?2=2.7 kg, and ?3=0.50 kg are arranged in the configurati...
A: given, m1= 3.4 kgm2=2.7 kgm3= 0.50 kgd1=26 cmd3=44 cmMoment of inertia of n number of masses are giv...
Q: In which of the following the momentum and energy of each body not conserved? a) Inelastic collision...
A: Option a
Q: Consider a wave described by the equation: n(x, t) = a Cos [2rG- vt)]. (a is the amplitude of the wa...
A: Given: The expression of the wave is ηx,t=acos2πxλ-νt. Introduction: Wave frequency is the number of...
Q: Mass of A is 4 times that of B. What is the ratio of their mean velocities? a) 1 : 4 b) 4 : 1 c) 1 :...
A: Option c
Q: A body can have energy without momentum.a) Trueb) False
A: For a system having internal energy greater than zero, momentum wouldn't be there.
Q: Statement: The amplitude of an oscillating pendulum decreases gradually with time. Reason: The frequ...
A: Option c
Q: 9. If a projectile (such as a bullet) is fired into the air with an initial velocity v at an angle o...
A:
Q: An a.c. generator consists of a coil of 50 turns and an area 2.5 m2 rotating at an angular speed of ...
A: The current is zero when the coil is vertical. In this position, flux through the coil is maximum. O...
Q: Find the current I of the given circuit below
A: Concept used: Voltage gets distributed in direct proportion of resistances. Current gets distributed...
Q: Diesel cycle consists of __________ processes. A. two constant volume and two isentropic B. two co...
A: one constant pressure, one constant volume and two isentropic
Q: A generation station of 6 kw has a load factor of 0.7 and plant capacity factor of 0.8. The plant ha...
A: Option b is correct
Q: Calculate the energy released by the fission of 5 gm of 235U in kWh if energy released per fission i...
A: Now, Number of atoms in 5 g of 235U = 6.023 X 1023 X 5/235 Energy released by the fission = 6.023 X ...
Q: Rectifiers are used to convert A. Direct current to Alternating current B. Alternating current to ...
A: Option b
Q: Nuclear fission is the phenomenon of ___________ a) Heavy nucleus splitting b) Heavy nucleus combini...
A: Option a
Q: What is the property of retentivity in magnetic materials? a) After removal of external magnetic fie...
A: Option a
Q: What is the example of ferromagnetic materials is? a) Magnetite b) Hematite c) Nickel d) Biotite
A: Option b
Q: Materials for rain-proof coats and tents owe their water-proof properties to A. surface tension B....
A: Option a correct
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